Bimetallic thermometer heat pipe length and measure the matter?

Bimetallic thermometer is mainly used to measure the temperature of the measured medium in low-temperature a measuring apparatus. In general, it consists of table, pointer, table card, pan, joint, heat and thermal components. The pointer is generally based on the size of the table card, temperature sensing element is according to the temperature range of bimetallic thermometer to decide. While other parameters can be depending on the use environment, customized according to demand. Usually, our customers can be clearly specified when custom table card, pan and joint requirements, but don't know how to choose the length of the bimetallic thermometer heat pipe. Bimetallic thermometer heat pipe is actually based on the depth of the measuring pipe diameter or equipment related, as long as the bimetallic of the long tail to the measurement of the medium level will not affect measurement accuracy. But it is important to note that the bimetallic thermometer temperature sensing element in about 50 mm in length, it has to be below the medium level measurement.